ELECTROCARDIOGRAPHIC CHANGES DURING BRIEF ATTACKS OF ANGINA PECTORIS

The electrocardiographic profile of patients with angina pectoris

Angina pectoris is a common disabling disorder and a clinical syndrome, caused by myocardial ischemia; an imbalance between myocardial oxygen supply and myocardial oxygen consumption. Thus, ischemia produces a typical series of events such as metabolic and biochemical alterations which lead to impaired ventricular relaxation and diastolic dysfunction, impaired systolic function, and electrocard...

Correlation of electrocardiographic studies and arteriographic findings with angina pectoris.

SUMMARY The relationships among angina pectoris, stress tests, and arteriography are complex. The majority of patients with angina pectoris can be adequately diagnosed by a careful history. Considerable attention to detail and repeated questioning is often necessary before the pain syndrome can be accurately classified. The resting electro-cardiogram is of limited value in the diagnosis despite...

Exercise performance and electrocardiographic changes as indices of effect of long-acting nitrates in angina pectoris.

Electrocardiographic changes during chest pain in unstable angina.

Twelve-lead electrocardiograms were recorded during one or more episodes of spontaneous chest pain in 41 patients with unstable angina. Selective coronary angtography and left ventriculography were subsequently carried out in 40 patients. In the remaining patient, the coronary arteries were examined at necropsy. Among the 29 patients with significant coronary artery disease, electrocardiographi...

Haemodynamic and electrocardiographic effects of frusemide during supine exercise in patients with angina pectoris.

The influence offrusemide on haemodynamic, electrocardiographic, and symptomatic response to exercise was studied in 19 patients with documented coronary artery disease. During the control exercise period all patients experienced angina and showed ST segment depression, accompanied by raised pulmonary artery wedge pressures (PWP). In 12 of these patients 40 mg frusemide was administered intrave...